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Finding the Fourth Proportional to 490.54, 735.30 and 230.32

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Solution

The fourth proportional to 490.54, 735.30 and 230.32 is: 345.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    490.54 : 735.30 = 230.32 : x
  2. Step 2: Convert to fraction form
    490.54/735.30 = 230.32/x
  3. Step 3: Cross multiply
    490.54x = 735.30 × 230.32
  4. Step 4: Simplify right side
    490.54x = 169,354.30
  5. Step 5: Solve for x
    x = 169,354.30/490.54
  6. Step 6: Final answer
    x = 345.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.